/* 布局 */
.f-row{
	display: flex;
	flex-direction: row;
}
.f-col{
	display: flex;
	flex-direction: column;
}
.a-i-c{
	align-items: center;
}
.a-i-fs{
	align-items: flex-start;
}
.a-i-fe{
	align-items: flex-end;
}
.j-c-c{
	justify-content: center;
}
.j-c-fs{
	justify-content: flex-start;
}
.j-c-fe{
	justify-content: flex-end;
}
.j-c-sa{
	justify-content: space-around;
}
.j-c-sb{
	justify-content: space-between;
}
.f-w-w{
	flex-wrap: wrap;
}